* Rare attack in central Islamabad, 11 dead
* Taliban declared month-long ceasefire over the weekend
* Judge, policeman among those killed, 30 wounded
By Maria Golovnina
ISLAMABAD, March 3 (Reuters) - Gunmen burst into a court in a busy shopping area in the heart of Pakistan's capital on Monday, killing at least 11 people in a suicide-bomb and gun attack likely to shatter any ...